Here's a pic of the bush in my yard,  it is so big and beautiful, hope these pics do it justice.  Is it an Azalea (sp?)    I know it needs some trimming but I don't know much about that either.

MIght be a Wygelia. As far as trimming goes, I think that is a matter of personal preference. I like to keep mine trimmed neatly. My Mom lets hers grow wild and free. It's beautiful whatever it is.